Quote:
Originally Posted by Rusty
Remember that the 3.8 and 3.7 are different motors. And the 3.7 is not a FI design. Any number of thing could cause the boost increase. Biggest I think is the difference in combustion ratios of the two. GT-R is 9 to 1, Z is 11 to 1.
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This is true but I am not sure it applies in this case... If it was boost creep then these factors could certainly contribute. But to me this looks like his wastegates are opening at 12psi and they are activated purely on pressure alone...